🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.9

Radius: 10.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.61 AU - 0.79 AU

Year: 404 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,380,614 km

• M1: 126,859 km (0.072 R)
• M2: 488,138 km (0.087 R)
• M3: 991,535 km (0.115 R)
• M4: 1,327,232 km (0.091 R)
• M5: 1,880,146 km (0.081 R)
• M6: 2,292,887 km (0.053 R)
• M7: 2,633,072 km (0.093 R)
• M8: 2,978,494 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.9

Radius: 14.2

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.78 AU - 0.92 AU

Year: 541 Days

Day: 10.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,380,614 km

• M1: 176,525 km (0.097 R)
• M2: 621,280 km (0.109 R)
• M3: 1,286,392 km (0.114 R)
• M4: 1,762,113 km (0.107 R)
• M5: 2,269,549 km (0.094 R)
• M6: 3,150,980 km (0.076 R)
• M7: 4,291,514 km (0.111 R)
• M8: 5,658,390 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.2

Radius: 10.2

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.96 AU - 1.14 AU

Year: 743 Days

Day: 6.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,380,614 km

• M1: 126,859 km (0.099 R)
• M2: 508,184 km (0.099 R)
• M3: 829,670 km (0.056 R)
• M4: 1,276,967 km (0.077 R)
• M5: 1,738,477 km (0.081 R)
• M6: 2,151,517 km (0.042 R)
• M7: 2,494,395 km (0.098 R)
• M8: 2,958,597 km (0.055 R)
• M9: 3,373,133 km (0.116 R)
• M10: 4,168,844 km (0.087 R)
• M11: 4,517,556 km (0.095 R)
• M12: 4,885,717 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.4

Radius: 12.8

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.26 AU - 1.74 AU

Year: 1268 Days

Day: 7.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,380,614 km

• M1: 162,463 km (0.114 R)
• M2: 601,683 km (0.092 R)
• M3: 1,015,022 km (0.094 R)
• M4: 1,571,825 km (0.11 R)
• M5: 2,350,482 km (0.072 R)
• M6: 2,841,163 km (0.115 R)
• M7: 3,583,467 km (0.098 R)
• M8: 4,158,222 km (0.034 R)
• M9: 5,807,838 km (0.079 R)
• M10: 6,691,513 km (0.088 R)
• M11: 7,590,596 km (0.058 R)
• M12: 8,885,964 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.6

Radius: 9.4

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.22 AU - 1.92 AU

Year: 1358 Days

Day: 12.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,380,614 km

• M1: 129,103 km (0.113 R)
• M2: 467,643 km (0.042 R)
• M3: 1,038,658 km (0.059 R)
• M4: 1,482,814 km (0.067 R)
• M5: 1,809,835 km (0.066 R)
• M6: 2,435,005 km (0.111 R)
• M7: 2,784,764 km (0.117 R)
• M8: 3,242,833 km (0.096 R)
• M9: 4,006,381 km (0.084 R)
• M10: 4,845,176 km (0.111 R)
• M11: 5,317,008 km (0.12 R)
• M12: 5,752,038 km (0.096 R)
• M13: 6,742,974 km (0.082 R)
• M14: 9,090,614 km (0.086 R)
• M15: 9,681,675 km (0.075 R)
• M16: 10,331,528 km (0.083 R)
• M17: 11,502,281 km (0.104 R)
• M18: 12,990,481 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.4

Radius: 13

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.42 AU - 4 AU

Year: 3970 Days

Day: 14.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,380,614 km

• M1: 161,715 km (0.111 R)
• M2: 758,012 km (0.032 R)
• M3: 2,232,299 km (0.101 R)
• M4: 2,875,421 km (0.105 R)
• M5: 4,070,109 km (0.052 R)
• M6: 4,632,148 km (0.103 R)
• M7: 6,207,115 km (0.054 R)
• M8: 10,556,523 km (0.107 R)
• M9: 12,757,706 km (0.075 R)
• M10: 13,862,487 km (0.112 R)
• M11: 14,867,186 km (0.062 R)
• M12: 16,262,485 km (0.074 R)
• M13: 16,726,837 km (0.098 R)
• M14: 22,724,515 km (0.113 R)
• M15: 25,417,277 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 12.6

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.64 AU - 4.16 AU

Year: 4327 Days

Day: 8.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,380,614 km

• M1: 158,424 km (0.1 R)
• M2: 588,518 km (0.093 R)
• M3: 1,056,311 km (0.12 R)
• M4: 1,671,158 km (0.035 R)
• M5: 2,093,473 km (0.1 R)
• M6: 2,965,479 km (0.1 R)
• M7: 3,815,344 km (0.065 R)
• M8: 4,390,997 km (0.114 R)
• M9: 5,303,394 km (0.109 R)
• M10: 5,996,481 km (0.105 R)
• M11: 6,833,332 km (0.102 R)
• M12: 7,324,611 km (0.118 R)
• M13: 8,410,392 km (0.059 R)
• M14: 9,146,115 km (0.119 R)
• M15: 12,440,858 km (0.042 R)
• M16: 13,710,645 km (0.109 R)
• M17: 15,113,274 km (0.069 R)
• M18: 16,049,907 km (0.115 R)
• M19: 16,455,616 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.5

Radius: 12.8

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.98 AU - 5.22 AU

Year: 6810 Days

Day: 12.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,380,614 km

• M1: 159,322 km (0.103 R)
• M2: 607,667 km (0.118 R)
• M3: 1,037,312 km (0.055 R)
• M4: 2,246,062 km (0.116 R)
• M5: 2,995,997 km (0.085 R)
• M6: 4,024,183 km (0.118 R)
• M7: 4,491,526 km (0.074 R)
• M8: 5,477,227 km (0.117 R)
• M9: 5,897,746 km (0.111 R)
• M10: 6,736,243 km (0.099 R)
• M11: 7,434,266 km (0.053 R)
• M12: 8,295,800 km (0.101 R)
• M13: 9,561,249 km (0.093 R)
• M14: 9,995,831 km (0.118 R)
• M15: 10,951,462 km (0.08 R)
• M16: 11,818,381 km (0.114 R)
• M17: 14,129,968 km (0.095 R)
• M18: 15,392,424 km (0.103 R)
• M19: 18,206,809 km (0.096 R)
• M20: 19,770,406 km (0.109 R)
• M21: 20,477,405 km (0.098 R)
• M22: 24,671,830 km (0.118 R)
• M23: 26,414,197 km (0.062 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.7

Radius: 8.4

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.28 AU - 5.08 AU

Year: 6988 Days

Day: 14.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,380,614 km

• M1: 104,419 km (0.04 R)
• M2: 698,472 km (0.114 R)
• M3: 1,636,900 km (0.079 R)
• M4: 2,148,824 km (0.104 R)
• M5: 5,564,742 km (0.096 R)
• M6: 7,636,971 km (0.067 R)
• M7: 7,908,192 km (0.07 R)
• M8: 8,845,423 km (0.097 R)
• M9: 10,987,814 km (0.113 R)
• M10: 11,535,193 km (0.086 R)
• M11: 13,120,631 km (0.094 R)
• M12: 16,783,086 km (0.119 R)
• M13: 18,255,877 km (0.114 R)
• M14: 19,165,731 km (0.114 R)
• M15: 21,842,486 km (0.068 R)
• M16: 27,925,135 km (0.048 R)
• M17: 36,451,466 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.3

Radius: 4.5

Gravity: 29.05 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 9.01 AU - 9.35 AU

Year: 19199 Days

Day: 21.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 70,380,614 km

• M1: 79,137 km (0.054 R)
• M2: 344,075 km (0.093 R)
• M3: 501,302 km (0.12 R)
• M4: 911,649 km (0.063 R)
• M5: 1,181,374 km (0.078 R)
• M6: 1,879,847 km (0.028 R)
• M7: 2,031,689 km (0.075 R)
• M8: 2,918,654 km (0.081 R)
• M9: 3,503,881 km (0.118 R)
• M10: 4,523,092 km (0.075 R)
• M11: 4,974,129 km (0.066 R)
• M12: 5,192,093 km (0.094 R)
• M13: 5,340,943 km (0.107 R)
• M14: 5,531,082 km (0.115 R)
• M15: 9,384,574 km (0.115 R)
• M16: 10,058,662 km (0.11 R)
• M17: 11,006,963 km (0.111 R)
• M18: 12,208,682 km (0.112 R)
• M19: 14,720,580 km (0.102 R)
• M20: 16,334,442 km (0.048 R)
• M21: 18,839,009 km (0.09 R)
• M22: 22,265,997 km (0.087 R)
• M23: 26,086,428 km (0.111 R)
• M24: 31,663,736 km (0.112 R)
• M25: 37,846,167 km (0.115 R)
• M26: 39,688,165 km (0.05 R)
• M27: 39,832,228 km (0.12 R)
• M28: 40,704,234 km (0.074 R)
• M29: 42,637,188 km (0.111 R)
• M30: 44,165,181 km (0.104 R)
• M31: 49,632,684 km (0.054 R)
• M32: 51,152,000 km (0.071 R)
• M33: 54,995,618 km (0.098 R)
• M34: 58,466,438 km (0.096 R)
• M35: 59,592,162 km (0.099 R)
• M36: 60,923,583 km (0.072 R)
• M37: 64,438,086 km (0.117 R)
• M38: 64,637,201 km (0.071 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 18,335 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit